/* ***************************************************************************
 *
 * fthash.h
 *
 * Hashing functions (specification).
 *
 */

/*
 * Copyright 2000 Computing Research Labs, New Mexico State University
 * Copyright 2001-2015
 * Francesco Zappa Nardelli
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE COMPUTING RESEARCH LAB OR NEW MEXICO STATE UNIVERSITY BE LIABLE FOR ANY
 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT
 * OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
 * THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

/* *************************************************************************
 *
 * This file is based on code from bdf.c,v 1.22 2000/03/16 20:08:50
 *
 * taken from Mark Leisher's xmbdfed package
 *
 */


#ifndef FTHASH_H_
#define FTHASH_H_


#include <freetype/freetype.h>


FT_BEGIN_HEADER


typedef union FT_Hashkey_ {
    FT_Int num;
    const char *str;
} FT_Hashkey;


typedef struct FT_HashnodeRec_ {
    FT_Hashkey key;
    size_t data;
} FT_HashnodeRec;

typedef struct FT_HashnodeRec_ *FT_Hashnode;


typedef FT_ULong (*FT_Hash_LookupFunc)(FT_Hashkey *key);

typedef FT_Bool (*FT_Hash_CompareFunc)(FT_Hashkey *a, FT_Hashkey *b);


typedef struct FT_HashRec_ {
    FT_UInt limit;
    FT_UInt size;
    FT_UInt used;

    FT_Hash_LookupFunc lookup;
    FT_Hash_CompareFunc compare;

    FT_Hashnode *table;
} FT_HashRec;

typedef struct FT_HashRec_ *FT_Hash;


FT_Error ft_hash_str_init(FT_Hash hash, FT_Memory memory);

FT_Error ft_hash_num_init(FT_Hash hash, FT_Memory memory);

void ft_hash_str_free(FT_Hash hash, FT_Memory memory);

#define ft_hash_num_free ft_hash_str_free

FT_Error ft_hash_str_insert(const char *key, size_t data, FT_Hash hash, FT_Memory memory);

FT_Error ft_hash_num_insert(FT_Int num, size_t data, FT_Hash hash, FT_Memory memory);

size_t *ft_hash_str_lookup(const char *key, FT_Hash hash);

size_t *ft_hash_num_lookup(FT_Int num, FT_Hash hash);


FT_END_HEADER


#endif /* FTHASH_H_ */


/* END */
